Finding the Fourth Proportional to 28,265,692.74, 42,397,634.79 and 11,879,658.42
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Solution
The fourth proportional to 28,265,692.74, 42,397,634.79 and 11,879,658.42 is: 17,819,107.56
Step by Step Solution
- Step 1: Write the proportion equation
28,265,692.74 : 42,397,634.79 = 11,879,658.42 : x - Step 2: Convert to fraction form
28,265,692.74/42,397,634.79 = 11,879,658.42/x - Step 3: Cross multiply
28,265,692.74x = 42,397,634.79 × 11,879,658.42 - Step 4: Simplify right side
28,265,692.74x = 503,669,419,121,108.44 - Step 5: Solve for x
x = 503,669,419,121,108.44/28,265,692.74 - Step 6: Final answer
x = 17,819,107.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.